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Hans and Zacharias Janssen

First compound microscope(2 lens)

Robert Hooke

Examined a cork; first person to describe a cell. (Modified microscope)

Matthias Schleiden

Realized plants were composed of cells(German botanist)

Theodore Schwann

Realize that animals were composed of cells.

Rudolph Virchow

Realized cells duplicate to make new cells

Cell theory

All living organisms are made of cells
Cells are the basic unit of living organisms
Cells divide to make new cells

Semi Permeable substance

Selectively allows entities to pass through it. (Diffusion Lab)

Diffusion (Form of passive transport)

When an item passes through the cell membrane to form a state of equilibrium.

Starch, Water, Iodine

Diffusion lab

Mitosis: Prophase

Chromosomes form; nuclear membrane disappears

Mitosis: metaphase

Chromosomes line up in the center of the cell

Mitosis: Anaphase

Chromosomes split and are pulled to the ends of a cell

Mitosis: Telophase

Nuclear Membrane reappears, chromosome uncoil


Produces z diploids (full set of DNA) occurs in body cells


Reproductive cells (gamets) result is 4 haploids cells ( half set of DNA)


Form of nuclear division

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